C C♯/D♭ D D♯/E♭ E F F♯/G♭ G G♯/A♭ A A♯/B♭ B
Major (Ionian mode) Dorian mode Phygian mode Lydian mode Mixolydian mode Minor (Aeolian mode) Locrian Harmonic Minor
A♯ ninth flat fifth chord (A♯, D, E, G♯, C)
How to play a A♯ ninth flat fifth chord on the guitar
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